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gas generator compostion


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#1 dave321

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Posted 26 April 2021 - 06:57 AM

excluding blackpowder which is too smokey and azides, i am after a simple gas generation composition, quick acting.

 

any obvious compostions come to mind ?

 

maybe based on ammonium perchlorate , Ammonium nitrate possible , nitrocellulose?

 

i guess nc as flash cotton might be suitable.

 

looking for ideas.


dave

#2 Arthur

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Posted 26 April 2021 - 10:31 AM

There is always the "oxygen candle" from submarine use or the emergency oxygen generator from civil airliner drop down masks. High chlorate and a little fuel and some iron to reduce the chlorine content. 



#3 Arthur

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Posted 26 April 2021 - 04:09 PM

Most things like small confetti canons use some kind of nitrocellulose either as a white fluff or as shotgun powder.



#4 Crazy Swede

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Posted 27 April 2021 - 01:39 AM

According to "High Explosives Propellants Pyrotechnics" by Ernst-Christian Koch, state of the art non-azide airbag comps are for example:

 

#3

35 potassium perchlorate

15 nitroguanidine

50 Guanidinium nitrate

 

#4

66.8 ammonium nitrate

  6.7 potassium nitrate

21.5 diammonium 5,5'-bi-1H-tetrazolate

  5.0 glass fibers (SiO2)

 

Both need strong confinement to burn quick, #3 is the fastest one.

 

 

Is liquid a possible solution and gas in the form of a mixture of steam and oxygen ok for your application?

 

Strong hydrogen peroxide (at least 40 % I think) dissociates very quickly into steam and oxygen when a small amount of potassium permanganate is added.



#5 dave321

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Posted 27 April 2021 - 04:17 AM

#3 looks possible

 

i must check out that book reference


dave




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